Satanism is believed to originated in 1637 in France by some depressed psychopath who hated everyone because he was annoying and worshiped the devil, and nobody liked him for that because they thought he was weird. One of the people who he hated the most was Richard Jean Japoiure, one of the king of france's high priests at the time.

The depressed psychopath hated him for stealing his wife from him, so he and 10 followers of his "club" tried killing Japoiure in his home, but failed, and the depressed psychopath was arrested and had his fucking head chopped off in front of everyone in the palace, along with 8 of his followers.

1 was killed while trying to flee the French Authorities and the other managed to escape to Spain where he started the entire religion of Satanism, and during the rituals and ceremonies, they would always curse Priest Richard Jean Japoire for the death of his beloved leader.